8. 1963 600 Pullman

Can you name the one car owned by Coco Chanel, Hugh Hefner, Elizabeth Taylor, John Lennon, Aristotle Onassis, Jack Nicholson, Fidel Castro, Pol Pot, and a whole bevy of Popes? Yup, the Mercedes-Benz 600 Series Pullman. This car was the luxury sedan for two decades, and yet less than 3,000 of them were ever built. The Pullman featured a hydraulically operated moon roof, windows, trunk, and doors (in 1963!). It also boasts the loudest horn ever installed on a production vehicle. The Pullman was the predecessor to the Maybach sedans we see now atop the Mercedes lineup, and it is still an icon to this day.